Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)
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Gestión de la energía
Convertidores de CA/CC y CC/CC (FET integrado)

TPS56637

ACTIVO

Convertidor reductor síncrono de 4.5 V a 28 V y 6 A, con modo ULQ

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TPS56637

ACTIVO
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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Forced PWM, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 13 Iq (typ) (µA) 125 Duty cycle (max) (%) 91
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Forced PWM, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 13 Iq (typ) (µA) 125 Duty cycle (max) (%) 91
VQFN-HR (RPA) 10 9 mm² 3 x 3
  • 4.5-V to 28-V input voltage range
  • 0.6-V to 13-V output voltage range
  • 6-A maximum continuous output current
  • Integrated 26-mΩ and 12-mΩ MOSFETs
  • 0.6-V ±1% Reference Voltage
  • D-CAP3™ control mode for fast transient response
  • Eco-mode™ and FCCM (forced continuous conduction mode) selectable for light-load operation through MODE pin
  • Internal 2-ms soft start
  • Built-in output discharge function
  • 500-kHz switching frequency
  • Power good indicator to monitor output voltage
  • Cycle by cycle over current limit
  • Non-latched protections for UV, OV, OT and UVLO
  • –40°C to +150°C operating junction temperature
  • Small 10-Pin 3.0-mm × 3.0-mm HotRod™ QFN Package
  • Available in WEBENCH® Power Designer to create custom designs
  • 4.5-V to 28-V input voltage range
  • 0.6-V to 13-V output voltage range
  • 6-A maximum continuous output current
  • Integrated 26-mΩ and 12-mΩ MOSFETs
  • 0.6-V ±1% Reference Voltage
  • D-CAP3™ control mode for fast transient response
  • Eco-mode™ and FCCM (forced continuous conduction mode) selectable for light-load operation through MODE pin
  • Internal 2-ms soft start
  • Built-in output discharge function
  • 500-kHz switching frequency
  • Power good indicator to monitor output voltage
  • Cycle by cycle over current limit
  • Non-latched protections for UV, OV, OT and UVLO
  • –40°C to +150°C operating junction temperature
  • Small 10-Pin 3.0-mm × 3.0-mm HotRod™ QFN Package
  • Available in WEBENCH® Power Designer to create custom designs

The TPS56637 is a high efficiency, high-voltage input, easy-to-use synchronous buck converter with integrated MOSFETs.

With the wide operating input voltage range of 4.5 V to 28 V, the TPS56637 is ideally suited for systems powered from 12-V, 19-V, 24-V power-bus rails. It supports up to 6-A continuous output current at output voltages between 0.6 V and 13 V.

The TPS56637 uses DCAP3™ control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors such as POSCAP and MLCC.

The TPS56637 has both FCCM and Eco-mode™ operation modes for selection at light-load condition through configuration of MODE pin. To attain high efficiency at light load, Eco-mode™ could be selected. To support tight output voltage ripple requirement, FCCM could be selected.

The TPS56637 provides complete non-latched OV (Over-voltage), UV (Under-voltage), OC (Over-current), OT (Over-temperature) and UVLO (Under-voltage lock-out) protections combined with power good indicator and output discharge function features.

The TPS56637 is available in a 10-pin 3.0-mm x 3.0-mm HotRod™ QFN package and the junction temperature is specified from –40°C to 150°C.

The TPS56637 is a high efficiency, high-voltage input, easy-to-use synchronous buck converter with integrated MOSFETs.

With the wide operating input voltage range of 4.5 V to 28 V, the TPS56637 is ideally suited for systems powered from 12-V, 19-V, 24-V power-bus rails. It supports up to 6-A continuous output current at output voltages between 0.6 V and 13 V.

The TPS56637 uses DCAP3™ control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors such as POSCAP and MLCC.

The TPS56637 has both FCCM and Eco-mode™ operation modes for selection at light-load condition through configuration of MODE pin. To attain high efficiency at light load, Eco-mode™ could be selected. To support tight output voltage ripple requirement, FCCM could be selected.

The TPS56637 provides complete non-latched OV (Over-voltage), UV (Under-voltage), OC (Over-current), OT (Over-temperature) and UVLO (Under-voltage lock-out) protections combined with power good indicator and output discharge function features.

The TPS56637 is available in a 10-pin 3.0-mm x 3.0-mm HotRod™ QFN package and the junction temperature is specified from –40°C to 150°C.
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Documentación técnica

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* Data sheet TPS56637 4.5-V to 28-V Input, 6-A Synchronous Buck Converter datasheet (Rev. A) PDF | HTML 11 abr 2019
EVM User's guide TPS56637 Buck Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 10 jun 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 abr 2021
Application note Optimize Output Filter on D-CAP2 for Stability Improvement 13 jun 2017

Diseño y desarrollo

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Placa de evaluación

TPS56637EVM — Módulo de evaluación de convertidor reductor CC-CC

The TPS56637 is an adaptive on-time D-CAP3™ mode synchronous step-down DC-DC converter, and is able to deliver 6-A continuous output current. This switch mode power supply (SMPS) IC is optimized for applications require very low-power consumption, such as printers, DTV and monitor, by (...)
Guía del usuario: PDF | HTML
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Modelo de simulación

TPS56637 PSpice Transient Model

SLVMD48.ZIP (109 KB) - PSpice Model
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VQFN-HR (RPA) 10 Ultra Librarian
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Pedidos y calidad

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  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
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  • Resumen de calificaciones
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